Auroral electrojet activity index AE and its universal time variations
Auroral electrojet activity index and universal time variations
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Auroral electrojet activity index and universal time variations
Conceptual study of possible solutions to long- term and time-critical reliability problems affecting Apollo command module guidance and control computer
Packaging, machine organization, error detection, and fabrication and test in determining solution to long-term and time-critical reliability of Apollo command module guidance-control computer
Selected biological experiments for Apollo orbital missions
Auroral electrojet index and universal time variations, discussing polar disturbance statistics
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